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如何使用Aurelia与Select2的数据绑定?它似乎与一个标准选择工作得很好。Aurelia和Select2更改事件
理想情况下,我想在select元素中使用change.delegate来调用我的View Model中的方法,这样我就可以访问我们注入的数据存储。
我可以让一个事件触发的唯一方法是连接()处理程序中的更改事件,但数据存储超出范围。
查看:
<template>
<label>Company:</label>
<!-- i would like to use change.delegate="change()" below -->
<select value.bind="selectedCompanies" multiple>
<option repeat.for="company of companies" model.bind="company.CompanyId">${company.CompanyName}</option>
</select>
</template>
视图模型:
import {inject, bindable} from 'aurelia-framework';
import {FilterCompanyData} from 'data/custom elements/filters/filterCompanyData';
import {UserStorage} from 'storage/userStorage';
@inject(Element, FilterCompanyData, UserStorage)
export class FilterCompanyCustomElement {
@bindable selectedCompanies;
constructor(element, filterCompanyData, userStorage) {
this.element = element;
this.filterCompanyData = filterCompanyData;
this.userStorage = userStorage;
this.companies = [];
}
bind(bindingContext, overrideContext) {
let userId = this.userStorage.userId;
return this.filterCompanyData
.getCompanies(userId)
.then(response => this.companies = response);
}
attached() {
var el = $(this.element).find('select');
var sel = el.select2({
closeOnSelect: false
});
// Is it possible to get rid of this?
sel.on('change', function (event) {
if (event.originalEvent) { return; }
// TODO add changed data to user storage
var IE = ((navigator.userAgent.indexOf("MSIE") != -1) || (!!document.documentMode == true));
var notice = IE ? new CustomEvent('change', { bubble: false }) : new Event('change', { bubble: false });
$(el)[0].dispatchEvent(notice);
});
}
detached() {
$(this.element).find('select').select2('destroy');
}
change() {
// I'd like to use this method from change.delegate
// TODO add changed data to user storage
}
}
在一个侧面说明不Aurelia路上有一个内置的填充工具为新事件? IE似乎不喜欢那样。
如果你使用'新的事件(“变”,{气泡:真});' 'change.delegate'应该可以工作 –